Spring hinge



C. E. BAILEY.

SPRING HINGE. APPLICATION FILED JUNE27. I92!- 1 $27,929, Patented Sept. 5, '1922.

gwuentoz WW 6 M as I? atboznug Patented Sept. 5, 1922.

UNITED STATES PATENT orrice;

CLIFFORD E. BAILEY, OF CROIVIWELL, CONNECTICUT, ASSIGNOR TO THE STANLEY WORKS, 013 NEW BRITAIN, CONNECTICUT, A. CORPORATION OF CONNECTICUT.

SPRING HINGE;

Application filed June 27,

To all whom it may concern:

Be it known that I, GLIrroRD E. Balms, a citizen of the United States, and a resident or Cromwell, county of Middlesex, State of Connecticut, have invented certain new and useful Improvements in Spring Hinges, of which the following is a specification.

The aim of the present invention is to provide a spring hinge having various features of novelty, and which is particularly characterized by its simplicity and economy in construction and its neatness in appearance.

The figure in the accompanying drawing is a front view of a hinge illustrating my invention.

a, Z), is a pair of leaves preferably formed of sheet metal and respectively provided with pairs of ears 10, 11, these cars having registering apertures through which extends a pin 0. Springing from the edges of the apertures in the ears 10 are prongs l2-which constitute bosses. (Z denotes a coiled spring about the pin 0 and with its ends surrounding the bosses 12.

It will be seen that the spring (Z is of gradually increasing diameter from its center portion towards its opposite ends and that the diameter of the central portion is such that it more or less closely receives the pin 0. It will be noted that with the arrangement described, the ends of the spring are maintained against lateral displacement by the bosses l2, and the pin prevents the springfrom becoming longitudinally bowed or cooked under the torsional strains to which it is subjected when the door to which the hinge is attached is thrown open, Also, by making the spring in the form described, the pitch, that is the distance between theadjacent convolutions, may be of such coarseness that the spring may be neatly finished or enamelled, while at the same time the 1921. Serial No. 480,549.

spring possesses sufiicient strength for the purposes at hand; also, there is'a saving in the amount of wire, employed.

I claim as my invention:-

1. An article of the character described comprising a pair of leaves, a pin pivotally connecting the same, and a coiledspring, through which said pin passes and havmg an intermediate portion of reduced diameter closely fitting said pin.

2. An article of thev character described comprising a pair of leaves, a pin pivotally connecting the same, and a coiled spring about said pin of gradually increasing diameter toward each of its ends.

3. An article of'the character described comprising a pair of leaves, a pin pivotally connecting the same, acoiled spring through which said pin passes having a central portion of reduced diameter, closely fitting said pin, andmeans "on said leaves cooperating with the ends of said. spring for holding the same against lateral displacement.

a. An article of the character described comprising a pair of leaves formed of sheet metal and providedwith ears havingregistering apertures and integral prongs extendingftrom the edges of some of saidaperturns, a pin extending through said apertures, and a coiled spring positioned about said pin with its ends encircling said prongs.

5; An article of the character described comprising a pair of leaves formed of sheet metal and provided withfianges having mg i istering apertures and integral prongs extending from the edges of some Off said apertures a oin extendin throu h said a eri r b P tures and a coiled s 311119'W1tl1 a central ora, 1 Q tion or reduced diameter closely fitting said pm and having 1ts ends encircling said prongs. i

- CLIFFORD E. BAILEY. 

